Ocean acidification effects on calcifying macroalgae
Since the Industrial Revolution, the partial pressure of carbon dioxide (pCO2) has been increasing and global ocean surface waters have absorbed 30% of the anthropogenic CO2 released into the atmosphere. An increase in pCO2 in surface ocean waters causes an increase in bicarbonate ions (HCO3-) and p...
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Online Access: | https://oceanrep.geomar.de/id/eprint/25512/ https://oceanrep.geomar.de/id/eprint/25512/1/b022p261.pdf https://doi.org/10.3354/ab00581 |
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ftoceanrep:oai:oceanrep.geomar.de:25512 2023-05-15T17:50:14+02:00 Ocean acidification effects on calcifying macroalgae Hofmann, L. C. Bischof, K. 2014-11-20 text https://oceanrep.geomar.de/id/eprint/25512/ https://oceanrep.geomar.de/id/eprint/25512/1/b022p261.pdf https://doi.org/10.3354/ab00581 en eng Inter Research https://oceanrep.geomar.de/id/eprint/25512/1/b022p261.pdf Hofmann, L. C. and Bischof, K. (2014) Ocean acidification effects on calcifying macroalgae. Aquatic Biology, 22 . pp. 261-279. DOI 10.3354/ab00581 <https://doi.org/10.3354/ab00581>. doi:10.3354/ab00581 cc_by Article PeerReviewed 2014 ftoceanrep https://doi.org/10.3354/ab00581 2023-04-07T15:14:15Z Since the Industrial Revolution, the partial pressure of carbon dioxide (pCO2) has been increasing and global ocean surface waters have absorbed 30% of the anthropogenic CO2 released into the atmosphere. An increase in pCO2 in surface ocean waters causes an increase in bicarbonate ions (HCO3-) and protons (H+) and a decrease in carbonate ions (CO32-), thereby decreasing the pH and the saturation state of the seawater with respect to CO32-. These changes in ocean chemistry (termed ocean acidification) are expected to have negative impacts on marine calcifying organisms. Because calcifying marine primary producers are important to the carbon cycle and rocky shore habitat structure and stability, investigating how they will respond to future oceanic pCO2 levels is a relevant and important topic of research. Due to a recent strong increase in the number of studies investigating the responses of calcifying marine macroalgae to elevated pCO2, this review aims to present the state of knowledge on the response of calcifying macroalgae to ocean acidification alone and in combination with global and local stressors. We discuss the physiological responses of calcifying macroalgae to elevated pCO2 within the contexts biogeography, taxonomy, and calcification mechanisms. Generally, coralline algae that deposit high-Mg calcite are most susceptible to high pCO2, and polar species are particularly at risk. However, some dolomite-depositing species may be able to acclimate to high pCO2. Calcifiers generally show sensitivity to overgrowth and outcompetition by noncalcifying algae when grown under elevated CO2 conditions, and this trend could be amplified under conditions of high inorganic nutrients. However, it still remains unknown whether or not calcifiers will be able to adapt to their rapidly changing environments. We discuss the lack of research on this topic, and provide some suggestions for how this knowledge gap can be filled by future research. Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Aquatic Biology 22 261 279 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
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English |
description |
Since the Industrial Revolution, the partial pressure of carbon dioxide (pCO2) has been increasing and global ocean surface waters have absorbed 30% of the anthropogenic CO2 released into the atmosphere. An increase in pCO2 in surface ocean waters causes an increase in bicarbonate ions (HCO3-) and protons (H+) and a decrease in carbonate ions (CO32-), thereby decreasing the pH and the saturation state of the seawater with respect to CO32-. These changes in ocean chemistry (termed ocean acidification) are expected to have negative impacts on marine calcifying organisms. Because calcifying marine primary producers are important to the carbon cycle and rocky shore habitat structure and stability, investigating how they will respond to future oceanic pCO2 levels is a relevant and important topic of research. Due to a recent strong increase in the number of studies investigating the responses of calcifying marine macroalgae to elevated pCO2, this review aims to present the state of knowledge on the response of calcifying macroalgae to ocean acidification alone and in combination with global and local stressors. We discuss the physiological responses of calcifying macroalgae to elevated pCO2 within the contexts biogeography, taxonomy, and calcification mechanisms. Generally, coralline algae that deposit high-Mg calcite are most susceptible to high pCO2, and polar species are particularly at risk. However, some dolomite-depositing species may be able to acclimate to high pCO2. Calcifiers generally show sensitivity to overgrowth and outcompetition by noncalcifying algae when grown under elevated CO2 conditions, and this trend could be amplified under conditions of high inorganic nutrients. However, it still remains unknown whether or not calcifiers will be able to adapt to their rapidly changing environments. We discuss the lack of research on this topic, and provide some suggestions for how this knowledge gap can be filled by future research. |
format |
Article in Journal/Newspaper |
author |
Hofmann, L. C. Bischof, K. |
spellingShingle |
Hofmann, L. C. Bischof, K. Ocean acidification effects on calcifying macroalgae |
author_facet |
Hofmann, L. C. Bischof, K. |
author_sort |
Hofmann, L. C. |
title |
Ocean acidification effects on calcifying macroalgae |
title_short |
Ocean acidification effects on calcifying macroalgae |
title_full |
Ocean acidification effects on calcifying macroalgae |
title_fullStr |
Ocean acidification effects on calcifying macroalgae |
title_full_unstemmed |
Ocean acidification effects on calcifying macroalgae |
title_sort |
ocean acidification effects on calcifying macroalgae |
publisher |
Inter Research |
publishDate |
2014 |
url |
https://oceanrep.geomar.de/id/eprint/25512/ https://oceanrep.geomar.de/id/eprint/25512/1/b022p261.pdf https://doi.org/10.3354/ab00581 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/25512/1/b022p261.pdf Hofmann, L. C. and Bischof, K. (2014) Ocean acidification effects on calcifying macroalgae. Aquatic Biology, 22 . pp. 261-279. DOI 10.3354/ab00581 <https://doi.org/10.3354/ab00581>. doi:10.3354/ab00581 |
op_rights |
cc_by |
op_doi |
https://doi.org/10.3354/ab00581 |
container_title |
Aquatic Biology |
container_volume |
22 |
container_start_page |
261 |
op_container_end_page |
279 |
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1766156899091218432 |